Alert archive / Colorado / Severe Thunderstorm Warnings in 2018

Severe Thunderstorm Warning 163, NWS Denver/Boulder, CO

June 27, 2018Adams County, Denver County, Weld County, Colorado

NWS Denver/Boulder, CO issued this severe thunderstorm warning at Jun 27, 2018, 4:49 PM MDT for Adams County, Denver County, Weld County, Colorado. It was in force for 26 min. No storm report in the archive falls inside the area while it was in force.

The area

The counties it named.

The facts

Issued: Jun 27, 2018, 4:49 PM MDT (22:49 UTC)
Expired: Jun 27, 2018, 5:15 PM MDT
In force: 26 min
Issued by: NWS Denver/Boulder, CO
Area: Storm-based polygon
Hail: 0.75 in
Wind: 60.0 mph

Counties Adams County, CO, Denver County, CO, Weld County, CO

The radar

The Denver radar (KFTG), 31 km from the middle of the area, began a volume at 22:51 UTC, the scan nearest the moment this went out.

Open the radar archive at this moment

The archived warnings, watches and discussions in force at that minute are drawn over the scan, this one among them.

What forecasters said that day

The local office's own words before this severe thunderstorm warning went out, as it sent them, from the Iowa Environmental Mesonet's archive of National Weather Service text.

NWS Denver/Boulder, CO wrote its last area forecast discussion before this severe thunderstorm warning went out at Jun 27, 4:35 PM MDT, 14 minutes earlier.

Area forecast discussion, Jun 27, 4:35 PM MDT, 14 minutes before

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Hazardous weather outlook, Jun 27, 11:03 AM MDT, 5 hours 46 minutes before

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      <div class="status" id="status">Temporary Notice</div>
      <h1 id="headline">This service is currently unavailable.</h1>
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        The site you requested is temporarily down for maintenance or an unexpected outage.
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The office that day

Everything else NWS Denver/Boulder, CO issued on the same UTC day.

Issued	Product	Office	Counties	Lasted
Jun 27, 3:39 AM MDT	Red Flag Warning	BOU	Boulder, Clear Creek, Douglas, Gilpin, Grand, Jackson and 5 more	42 hr
Jun 27, 5:24 PM MDT	Special Weather Statement	BOU	Denver	36 min

Nearby

Severe Thunderstorm Warnings in Colorado, 2018 Every severe thunderstorm warning in 2018

Sources

The product and its follow-ups from the Iowa Environmental Mesonet's archive of National Weather Service and Storm Prediction Center text; radar from the NEXRAD Level II archive.